Which do you think would have the greater volume and mass? Why? 1 kg of feathers1 kg of rock.

Which do you think would have the greater volume and mass?

Why?• 1 kg of feathers • 1 kg of rock

Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the amount of matter within a certain volume.

Proof that water and ice have different densities

To find the density1- Find the mass of the

object

2- Find the volume of the object

3- Divide Density = Mass

Volume

Units for density g/cm3 or g/ml

Formula: M = mass V= volume D = density

M = D x V V = M / D D = M / V

1) Find the mass of the object

2) Find the volume of the object

3) Divide : Density = Mass - Volume

To find density:

Ex. If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density.

1) Find the mass of the object

2) Find the volume of the object

3) Divide : Density = Mass - Volume

To find density:

Set up your density problems like this:

Given: Mass = 35 grams Unknown: Density (g/ cm3) Volume = 7 cm3

Formula: D = M / V Solution: D = 35g/7 cm3

D = 5 g/cm3

Ex. If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density.